/*
Google phone interview question
You are given two general binary trees T1 and T2 which store character data, duplicates allowed. You have to devise an algorithm to decide whether the T1 is a subtree of T2. T1 has millions of nodes and T2 has hundreds of nodes.
coder

http://discuss.joelonsoftware.com/default.asp?interview.11.574104.13
*/
 
